Partial denture



April 14, 1942.

C. N. SKINNER PARTIAL. mam'uaa Filed Jan. 1'1, 1941 2 Sheets-Sheet 1 mvsmok. C. N. Skinner.

April 14, 1942. c. SKINNER PARTIAL DENTURE Filed Jan. 17,- 1941- 2 Sheets-Sheet 2 INVENTOR. ciN. Skinner. BY

Patented Apr. 14, 1942 UNITED STATES PATENT QFFICE PARTIAL DENTURE Clawson N, Skinner, Whittier, Calif. Application January 17, 1941, Serial No. 374,848

8 Claims.

This invention relates to improvements in partial dentures.

The general objectof the invention is to provide an improved means for connecting a partial denture saddle to an anchoring means.

Another object of the invention is to provide a novel, detachable means for connecting a partial denture saddle to a securing means.

A further object of the invention is to provide novel means for connecting a partial denture saddlev to an anchoring means in such manner as to provide restricted universal movement of the denture saddle.

Other objects and the advantages of this invention will be apparent from the following description taken in connection with the accompanying drawings wherein:

Fig. 1 is a side view of a partal denture embodying the features of my invention and showing it anchored to abutment teeth.

Fig. 2 is a view of the device shown in Fig. 1 looking toward the front of the mouth.

Fig. 3 is a top plan View of the device shown in Fig. 1.

Fig. 4 is an enlarged side View, partly in sectinon, of the denture shown in Fig. 1.

Fig. 5 is an enlarged top plan view partly in section, showing my improved connector device.

acters, I have indicated my improved connector device generally at [0. As shown the device con- :sists of two saddles A secured on opposite sides the construction includes an elongated body por- Fig. 6 is a section taken in line 66 of Fig. 5.

Fig. 1?) is an enlarged section through the modified form of connector member taken on line Ill-Ill of Fig. 9.

Fig. 11 is a side elevation of the device shown in Fig. 10. 7

Fig. 12 is an end view of the device as shown in Fig. 11.

Fig.13 is a side view of a partial denture em-- bodying a further modified form of my invention.

Fig. 14 is an enlarged side elevation of the modified connector member shown in Fig. 13.

Fig. 15 is a top plan view partly in section of the device shown in Fig. 14.

Fig. 16 is an end view of the device as shown in Fig. 14, and

Fig. 1'7 is a section through the denture base showing the pin and bar member partly removed therefrom.

Referring to the drawings by reference charcircumstances.

tion 12 having a slot 13 therein, opening through the top, bottom and through one end thereof. The sides of the body 12 are convergingly tapered towards the closed end of the slot, and the body includes a reduced end tongue M having an aperture l5 therein.

The slot l3 also convergingly tapers from the open end thereof towards the opposite end where the body includes a step portion l6, which extends across the slot'adjacent the bottom thereof. Adjacent the open end of the slot I3, one side of the body has an aperture l1 therein and the opposite side of the body has an aligned threaded aperture I8 therein.

Connected'to the body I2 I provide a link member 20 which, at one end, includes a pair of spaced lugs 2| each having an aperture 22 therein in which a pin 23 is positioned. The tongue M of the body I2 is positioned between the link lugs 2| and the pin 23 is: positioned in the aperture 15 of the tongue.

The aperture IS in the tongue I4 is preferably of a greater diameter than the pin 23, to allow angular movement of the link 20 as well as pivotal movement. Intermediate the length thereof, the link 20 has a transverse bar 24 thereon which may be soldered thereto.

The device 10 further includes a bar member 25 whichis adapted to be positioned in the body slot 13 and, like the slot, has sides which taper towards one end where a lip portions 26 is provided. This lip portion is adapted to overlap the step portion 16 of the body. Adjacent the end thereof opposite the lip 26 the bar has a transverse aperture 21 therethrough.

- The body I2 and the bar 25.are adapted to be connected by a pin 28 which, adjacent one end, includes a threaded portion 29. positioned in the aperture ll of the body and in the bar aperture 21 and the threaded portion 29 thereof is positioned in the threaded body aperture l8. The device [0 is adapted to be moulded within a plastic denture base or saddle 30 or attached to a metal saddle.

The saddle area varies with each individual, therefore the relative positions of the body [2 and the link 20 must vary to coincide with the Accordingly, before the device The pin 28 is is arranged in the denture base it is positioned at the most convenient relationship and a drop of solder 32 is placed over the body tongue [4 and link lugs 2| to retain the two in the adjusted position. The ends of the pin may then be cut oil as shown in Fig. 8.

The device I is then placed in the correct position in the denture area so that the large end of the bar 25 will be substantially flush with the vergingly tapered from the open endtowardstheq closed end. Adjacent theiopen endthe housing has a pair of opposed apertures 431i11i12h8i$id8i 1 walls thereofand exteriors thereto ;0n.:0ne:side the housing has a .washer member soldered thereto whichhas 'anaperture 45 ,thereingcoe axial with the housing apertures 43. Oppositea,

the washer 44 the housing has a similar washer-1 46 soldered thereto which has" a threaded-aperture. 41 therein. co-axial-with the housing aperltures -43. Wire loops; 48 :are, soldered-to'.;the:..:v sides-of the housing and the closed? 8111142 ha's..=

a wire loop 49 solderedthereto;

The device 40 furtherrincludesta barimemberai- 50 which-is taperedxto .conform;to thezshapeiof the housing fi'l iinwhich-it .is adaptedaitolbe aloe-L sitioned; Adj acent. ;the alargel end-1thereofcth-a; bar 50 has a transverseaperture '5l thBIBiHJZIIdLz. inrthe face of thelargelend' it has .a groove252 4 ,5 therein.

, r 6) To form a denture usingtthezdevi'ce40*the ba1a.

50 is positioned in the .housingAhand connected thereto by a pin 53.having. az threadedsportion-M adjacent one endthereot: Thez in 53 is positioned in the housing washeraperture 45 in the/7 6 housing apertures 43 r and. in :the bar aperture '5 l .s

with the threaded portiontpositioned lthe threaded. aperture; 41 cf .the; housing washer 46:

The. assembled device :4 0 is then correctlypo sitioned-v in the dentureibase. area and the base 7 able anchor band such asrindicated at 51. The groove 52 provides a channelway for the solder to flow into when the bar is being secured to the anchor band. The bar 50 may be relieved at various places as previously described in connection with the bar 25 to allow slight restricted universal movement between it and the housing 4|, to provide a more comfortable fit. In Fig. 13 I have indicated a further modified form of of the bar. 63.11 .The-Jbar 63 then again posi tioned in the :denture plateiflnxand"secured in position byzthetpin 64 which is thensevered fiushwiththe surface of the denture plate base.-.. From the foregoing description it will be ap ture. connector .JdeVicev which .is simpleflan'd is so const'ructedthat it hasa desire'd 'slight-restricted universal movement to facilitateadjustment and to provide comfort for'the wearer. 2

I claim:

, to .be-.secured toiian anchomia body-mounted onbodyztofmove slightlythereomia denture castingonv the Y body. a

, 2. In an anchor device for a partial denture,

a bar membe'rr adapted; to be secured to an anchor, a body having a slot receiving said bar, said ;bar being iof .a size itorpermitthe body'to end of the finished base: when the denture is my invention generally at 60.- As shown the deprocessed. After the denture 3| is processed, pin vice 60 includes a pair of polygonal washer mem- 28 may be removed thereby allowing the bar 25 bers GI and 62, a bar member 53 and a connector to be removed from the body [2. pin-64 which includes a threaded portion 65 ad- Before or after the denture is processed the jacent one end. The washer 6| has an aperture end of the bar 25 is adapted to be secured-as-;66-therethrough and the washer 62 has a threadby soldering to a suitable anchoring. device. such ed aperture 61 therethrough. as indicated at 33 which, in this instance, is The bar 63 is preferably converginglytapered shown as including ananchor-band 34adaptedtowards one end and adjacent thesmall end to be secured to or'surround a tooth 35 .adjah has.atransverse aperture 68 therethrough. cent the denture and connected by a bar 36 to '20 To form a denture plate using the device 60 another band 31 adapted to be secured to 1 or the. apertures of the washers SI and 62 are surround a tooth 38 spaced therefromirom :the-r' c aligned with the bar aperture 68 and the'pin 64 tooth 35. is positioned inthesaperture 66of the washer 6| After the bar is secured to theanchor. memri and Linuthe bar aperture: 68:with"the threaded ber 33, the bar 25 is positioned in the-body apex-' 5 portion thereof positioned in :the threaded aperture l3 and retained in position by thepin 28.2. ture .611 of .thewasher 52, Thejwaghers-Gl and If when the device is placed ,inja patients' mouth 62 .are placedagainst thesides of th bar 53 and and it is found desirable. to allowa slightmovethe entire device 60. correctly :positioned in the ment of the-denture 3| the deviceis removed: denture base area. :Th'ereafte'r. the.base:63 of a and portions of the sides of the bar 25.relieved, dentureplate: 10 is processed encasing the de-' as at 39, or portions of the sidesgoftherbodyvice 60 and leaving .theendof the bar 63 subp u v d, as a 392 By thuskr lievingw. stantially flush'with the 'end' of the base 69:. portions of the device l0, the.devicecmayxbe more; Each of the washers GI and 62? preferably hav comfortably fitted to a patient. .After correct ade a peripheral groove :'I| th i t r i th ba lustment'of the d e s der pin;28 is :sev-z 1 material .to prevent accidentalzmovement of the ered flush with the sides of the. denture ;base ;30. z., a h i In F :9 I av in icateda modifiedaformiof. Before or after the denturetfl is processed the my inve ion ne y zi A shown',-: he de-.. barz63, ,likethe .bars :25 and 50.; is secured= to'a vice 40 includes an elongated, hol1ow,thin.meta1l suitable. anchor. After the denture :10 isformed, housing 4| closed at one end as at 42=,.-a'nd:.:con-:1 .joithe pin 64 maybe r moved, .allowingsremoval parent that I havecprovid'ed 2a .novelpartial den- 1; In anqachoridevice fora partial denture, an: elongated bar member, having one end adapted said bar, said .barubeing'tof :a size i rperm'it the move a-slightly thereon; umeans to prevent 'reif means on the, end of said! body remote from said preventing meansito loosely and pivotally mount" the. link OIlFth body...

arruelongatedcbar member adapted to be' secured to an anchor, a body having a slot receiving said moval of the bar from the body, a link and bar .membe'r,- said bodyand bar ha vingcolhple v mentalxengaging;faces; a pin 'passing through" one end of said body and bar to hold theparts 217-5 nassembledecsaidmc'dy having-a tongue zthe'reon:

a link having spaced lugs disposed about the tongue, and a pin passing through said lugs and said tongue to pivot the link on the body.

4. In an anchor device for a partial denture, a bar member adapted to be secured to an anchor, said bar member having plane faces tapering from the anchor device, a body having an open ended slot therein receiving said bar, said slot having side walls complemental to said bar, said body and bar having aligned openings, a pin passing through said openings, said pin loosely fitting said bar aperture whereby the body has slight universal motion about the bar, said body having a tongue thereon remote from the pin, an open link having spaced projecting lugs at one end receiving said tongue, said lugs and said tongue having aligned apertures, a second pin passing through said last mentioned apertures, said pin loosely engaging the tongue apertures, whereby the link has limited motion relative to the body, means to limit the movement of the link about the second pin, and a partial denture casting engaging said link and said body.

5. In an anchor device for a partial denture, a bar member adapted to be secured to an anchor, said bar member having plane outer faces tapering forwardly from the anchor device, a

body having an open ended slot therein, said slot having side walls converging from the .open end and complemental to said bar, said bar being positioned in said slot, said body and bar having aligned openings, a pin passing through said openings, said pin loosely fitting said bar aperture whereby the body has slight universal motion about the bar, said body having a tongue thereon, remote from the pin, an open link having spaced projecting lugs at one end receiving said tongue, said lugs and said tongue having aligned apertures, a second pin passing through said last mentioned apertures, said pin loosely engaging the tongue apertures, whereby the link has limited motion relative to the body, means to limit the movement of said link about said second pin and a partial denture casting engaging said link and said body.

6. In an anchor device for a partial denture,

a bar member adapted to be secured to an anchor, said bar member having plane outer faces, said faces being rectangular in cross section and tapering from the anchor, a body havingan open ended slot therein, said slot having side walls converging from the open end and complemental to said bar, said bar being positioned in said slot, said body and bar having aligned openings, a pin passing through said openings, said pin including a threaded portion and one of said body apertures being threaded to receive the pin, said pin loosely fitting in said bar aperture whereby the body has slight universal motion about the bar, said body having a tongue thereon, remote from said pin and including a step adjacent said tongue, an open link having projecting lugs at one end, said lugs being spaced apart and receiving said tongue, said lugs and said tonguehaving aligned apertures, a pin passing through said last mentioned apertures, said pin tightly engaging the lug apertures and loosely engaging the tongue apertures, whereby the link has limited motion relative to the body, said link having a lip engaging said step, a bar across said link and a partial denture casting engaging said link and said body.

7. In an anchor for a partial denture, an elongated tapering bar member having plane faces, an anchor secured to said bar member, said bar member having aligned washer members secured thereto, said bar having an aperture aligned with the washer apertures and a pin passing through the washers and extending through the bar.

8. In an anchor for a partial denture, an elongated tapering bar member having plane faces, an anchor secured to said bar member, said bar member having washer members secured on opposed sides thereof, each of said washer members having a peripheral grove therein, said bar having an aperture aligned with the washer apertures, one of said washers being internally threaded, and a pin having a threaded end portion engaging the threaded end of the washer and extending through the bar and the other washer.

CLAWSON N. SKINNER. 

